Oxygen breathing apparatus
AssigneesMuneyuki Ishizuka, Leslie W. Peterson, Peter Durante
InventorMuneyuki Ishizuka
Life of this patent
Estimating the term…
Abstract
An oxygen breathing apparatus with a spectacle kit comprising a plurality of frame members of eyeglasses, such as a tubular temple member an tubular endpiece member, and a hinged joint through which the tubular members are rotatably and hermetically connected with each other to establish a common joint portion of these tubular members By providing a thick-walled connection portion in each of the tubular members, the apparatus is free from any deformation of the common joint portion of the tubular members even when folding/unfolding operation of the temple member is repetitively performed.
Claims13
In an oxygen breathing apparatus having a plurality of tubular frame members, the tubular frame members comprising first and second end piece members and first and second temple members, the end piece members and the temple members each having a first end and a second end, with the first end of at least one of the temple members in air communication with an oxygen supply and the first end of at least one of the end piece members in air communication with a nostril cannula, the second end of the first temple member rotatably hinged relative to the second end of the first end piece member and moveable between a first position and a second position, and the second end of the second temple member rotatably hinged relative to the second end of the second end piece member and moveable between a first position and a second position, the improvement comprising:
- a. a thick walled connection portion disposed at the second end of each end piece member and each temple member, each of said thick walled portions comprising a contact end surface;
- b. said thick walled connection portion of at least one of said end piece members also comprising a convex portion, and said thick walled connection portion of at least one of said temple members also comprising a concave portion;
- c. wherein, when said second end of each temple member is moved from the first position to the second position relative to said end piece members, the contact end surface of each of said temple members engage the contact end surface of said each of said first end piece members to form a first and second common joint portion, and the convex portion of said at least one end piece member is inserted into the concave portion of said at least one temple member to form a hermetic seal and establish air communication between said at least one end piece member and said at least one temple member and said first and second common joint portions are prevented from being damaged during use.
An oxygen breathing apparatus, comprising:
- a. an eyeglass frame comprising first and second temple members and first and second end piece members, at least said first temple member and at least said first end piece member comprising hollow tubular members, said first and second temple members having first and second ends and said first and second end piece members having first and second ends;
- b. a first hinged joint interconnecting the second end of said first temple member and the second end of said first end piece member, and a second hinged joint interconnecting the second end of said second temple member and the second end of said second end piece member, said temple members and said end piece members moving between a first position and a second position about said first and second hinged joints;
- c. said second end of at least said first temple member comprising a first thick walled portion having a first contact end surface and a first concave portion, and said second end of at least said first end piece member comprising a second thick walled connection portion having a second contact end surface and a first convex portion;
- d. wherein when said at least first temple member and said at least first end piece member move from said first position to said second position said convex portion is hermetically seated in said concave portion, said first contact end surface contacts said second contact end surface, and said first temple member is in air communication with said first end piece member.
Dependencies are inferred from the claim text.